<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>Canvas入门演示文档</title>
</head>
<body>

<canvas id="myCanvas" width="500px" height="500px" style="border:1px solid #000000; background-color: greenyellow">
    您的浏览器不支持 HTML5 canvas 标签。
</canvas>



</body>
</html>
